Materials Testing
Reversed loading flexural fatigue
Dr. Donald F. Adams, owner and president of Wyoming Test Fixtures (Salt Lake City, Utah) discusses reverse loading flexural fatigue testing and fixture design.
Read MoreBending of composite material compression specimens
Dr. Donald F. Adams, president of Wyoming Test Fixtures (Salt Lake City, Utah) looks at the effect bending has on compression testing of composite specimens.
Read MoreVIDEO: Helicopter Drop Test
NASA evaluates composites’ ability to improve helicopter crashworthiness by dropping a helicopter fuselage to simulate a severe survivable crash according to military and commercial transport requirements.
WatchBuckling of composite material compression specimens
Dr. Donald F. Adams (Wyoming Test Fixtures, Salt Lake City, Utah) rehearses the causes of, and solutions for, problems with buckling in composite compression specimens.
Read MoreABCs of ultrasonic inspection
A primer on nondestructive ultrasonic inspection technology.
Read MoreThe Short Beam Shear test method for composite materials
Dr. Donald F. Adams (Wyoming Test Fixtures (Salt Lake City, Utah) suggests larger support and loading cylinders for the Short Beam Shear test method.
Read MoreOptimization software improves small, low-cost satellite design
Ames Research Center’s (Moffett Field, Calif.) designs and builds a low-cost, small spacecraft on a quick turnaround, using a modular strategy based on commercial off-the-shelf (COTS) parts and with the aid of several design software packages and finite element solvers.
Read MoreThe Double-Notch Shear test specimen for composite materials
Dr. Donald F. Adams (Wyoming Test Fixtures Inc., Salt Lake City, Utah) recommends best practices for double-notch shear test specimens.
Read MoreSoftware isolates, identifies porosity-related flaws in tooling from fuselage test data
Software and composites manufacturing data specialist NLign Analytics, a division of Etegent Technologies (Cincinnati, Ohio) helps identify and track product flaws caused by tooling porosity.
Read MoreThickness-tapered unidirectional composite specimens
Sometimes a testing concept is known for a long time but is never developed into an established test method.
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